Tri-groove socket



FIG. 1 is a front top-left side perspective view for a tri-groove socket, showing our new design;

FIG. 2 is a rear bottom-right side perspective view of FIG. 1 thereof;

FIG. 3 is a front top-left side perspective view of FIG. 1 thereof;

FIG. 4 is a front elevational view of FIG. 1 thereof;

FIG. 5 is a rear elevational view of FIG. 1 thereof; and,

FIG. 6 is a left side elevational view of FIG. 1 thereof, the right side elevational view, top plan view and bottom plan view being a mirror image. 

CLAIM The ornamental design for a tri-groove socket, as shown and described. 